Combined blowpipe and burner.



E0 MODEL.

MFESSE'E PATENTED MAY 1'7, 1904.

R30. BROPHY. COMBINED BLOWPIPE AND BURNER.

APPLICATION PILBD MAY 3, 1901.

2 BHEETS-SHBET l. v

PATENTED MAY 17, 1904 R. U. BROPHY. COMBINED BLOWPIPE AND BURNER.

APPLIOATION TILED MAY 8,}901.

N0 MODEL.

REUBEN (J. BROPI IY, ()F

Patented May 17, 1904.

I'IINSDA LE, lL'Ll NUTS.

COMBIINED BLUWPIPE AND Humvee.

i SPECIFICATION forming part of Letters Patent No. 760,099, dated May 1'7, 1904:.

Application filed May8,1901. Serial No. 59,200. (No model.)

To all whom i/z may concern:

Be it known that 1, REUBEN (I. BnornY, a citizen of the United States, residing at Hinsdale, in the county of Dupage'and State of Illinois, have invented a new and useful Combined Blowpipe and Burner, of which the following is a specification.

This invention relates to a combined blowpipe and burners.

The object of the invention is to provide a construction and arrangement of hydrocarbon-supply tank and blowpipe and burners which is of simple and economical construction and thoroughly efficient in operation.

The invention consists, substantially, in the construction, combination, location, and arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawings, and finally pointed out in the appended claims.

Referring to the accompanying drawings,

and to the various views and reference-signs appearing thereon, Figure l is a view in side elevation of an apparatus constructed in accordance with the principles of my invention. Fig. 2 is a vertical central section of the hydrocarbon-sripply tank.

The same part is designated by the same reference-sign wherever it occurs throughout both views.

In the drawings,reference-sign A designates a tank or receptacle adapted to receive a supply of hydrocarbon oil. This tank is provided with a top or cover which is stamped out, as indicated at B. This stamped-out portion of the cover serves to strengthen said cover and also to prevent the tank from becoming completely filled withthe hydrocarbon oil supplied thereto.

Reference-sign C designates an auxiliary chamber, preferably made of glass or otherZ transparent material, so asto reveal to view arranged in said pipe D is a control-valve E. (See Fig. 1.) Hydrocarbon oil may be sup plied to the tank A in any suitable or convenient manner----as, for instance, through an opening in the top thereof, which opening may be closed by a screw-plug K. A pipe N is arranged to extend into the tank A, with the delivery end thereof projecting above the top surface of the hydrocarbon oil contained in the tank or chamber A, said pipe N communicating with an air-pump O, a valve P being employed to control the supply of air from said pump into and through said pipe N. Arranged to extend into the auxiliary tank or chamberU and to a point adjacent to the bottom of such chamber is a pipe (:lr, through which air may be delivered into said auxiliary chamber from any suitable or convenient source and in any desired manner. The bottom L of chamber or tank A is preferably concave or conical in shape and fluted, as clearly shown, in order to impart strength and rigidity thereto, the concave or apex of the cone-shaped bottom being p resen ted in wardly, as clearly shown, and, if desired, an opening may be formed through this bottom adapted to receive a screw-plug M or other suitable device through which the tank A maybe emptied or filled when desired. By forming the bottom L of concave or cone shape said bottom forms a funnel when the tank or receptacle A is inverted to facilitate the operation of supplying hydrocarbon oil to the chamber or tank. Moreover, it also serves to prevent the complete filling of the tank, as it is desirable that when the oil is supplied to such tank or chamher in suiiicient quantity a space be left above the top surface of the oil when the receptacle or tank rests upon the bottom, asshown in Fig. 2, and it is into this space that the delivery end of pipe Nextends.

Communicating with the interior of chamber or tank A at a convenient pointbelow the surface of the oil contained therein is a pipe Q, which may deliver to a suitable Bunsen or other burner R, adapted to be utilized for any purpose for which such burner or heater may be employed, and a needle-valve T may be arranged to eontrol'said burner. Ofcourse, if desired, other heaters or burners may be supplied from the chamber or tank A.

Lfommunicating through the top of the auxiliary chamber 0 is a pipe U, arranged to deliver to a blowpipe A. Any specific, special, or suitable construction of blowpipe may be employed. I have shown a particular construction adapted for use in carrying out my invention which is simple, economical, and cfiicient in operation and which coniprises a handle C, through which pipe U delivers to the nozzle D. The pipe U is tapped by a branch pipe E, \vhichpipe projcctslongitudinally through pipe U at its extremity and terminates at the nozzle 'D. Inter-posed in the pipe U and at a point between the nozzle D and the point at which pipe E branches from pipe U is a valve A, by which the vapor mixture supplied to the nozzle through pipe U may be regulated. This valve includes a thumb-nut or washer J, by which said valve may be actuated.

The operation of my invention is as follows: Hydrocarbon oilsuch, for instance, as gasolene-is supplied in sufiicient quantityto the chamber or tank A either by removing the screw-plug K and pouring such oil into such chamber or tank or else by inverting the vtank or chamber and removing screw-plugM from the bottom thereof, or said tank may be filled in any other suitable orcon'venien't manner. said chamber, a space being left abovc'the top surface of the oil, as clearly shown in Fig. 2, air is forced by pump 0 through pipe N into this space above the top surface of the oil, thus letting an air-pressure in such space, which pressure operates to give a head or pressure to the oil, thereby forcing a supply of the oil through pipe Q to the burner R, the ncedle-valve T regulating such supply. As the air-pressure above the top surface of the oil in the chamber decreases by drawing off the oil from said compartmentfor running or starting the burner or other heating device such pressure may be restored by manipulating the hand-pump O. The air-pressure contained in the tank or chamber A and within the space above the top surface of the oil also serves to force the oil from the chamber or tank A into the auxiliary chamber or tank C. When said auxiliary chamber or tank is filled to the required point, the supply of oil thereto from tank or receptacleA may be cut off by manipulating the valve E. The auxiliary chamber or tank being of glass or other transparent material, the quantity of oil thus supplied thereto from the chamber or tank A may be readily bserved, thus making it easy to maintain th{desired quantity-of oil therein. Air isi'now upplied to the auxiliary tank or re 'Vl hen the oil has thus been supplied to which may be regulated by the valve H. The

other part passes through the branch E and is delivered from nozzle D, thereby securing a most efficient blowpipe effect.

From the foregoing description it will be seen that I provide an exceedingly simple apparatus embodying an oil-burner which may be constantly in operation and which may be regulated at will and I also provide a vapor device, such as the blowpipe A, which also may be in operation and use separately or at the same time'as the burner, thus producing a most efiicient apparatus which is specially adapted for dental work.

It is obvious that many variations and changes in the details of construction and arrangement would readily occur to persons skilled .in the art and still fall Within thespirit and scope of my invention. I do not desire, therefore, to be limited or restricted to the exact and specific details of construction shown and described; but,

Having now set forth the object and. nature of my invention and a construction 'cmbod ying the principles thereof, what 1 claim as desire to secure by Letters Patent of the United States, is- I 1. In a hydrocarbon-blowpipe, the combination of a main tank or reservoir, an airnew and useful and of my owninvention, and a pump rigidly connected thereto, a supplemental fluid-reservoir of smaller capacity and having a transparent material embodied in its construction, rigidly connected to the firstnamed tank or reservoir, a valve for controlling the height of fluid in the auxiliary reservoir, and connections with the latter whereby a current of air may be carburcted, substantially as and for the purpose set forth.

2. In a device of the class described, the combination of a fluid-supply tank or reservoir having an air-pump rigidly connected thereto, with carbureter and blow pipe devices, the said reservoir having an interiorly convex and exteriorly concave portion provided with a filling-aperture, whereby an air-space inside the reservoir is insured, and a funnel for the purpose of refilling is provided, substantially as and for the purpose set forth.

3, In a device of the class described, the combination of a fluid-supply tank or reservoir having an air-pump rigidly connected thereto,w 1th carburetor and blowplpe devices,

veeoee the said reservoir having an interiorly convex 1 In witness whereof I have hereunto set my and exteriovly concave portion provided with hand, this 6th day of May, 1901, in the pres milling-aperture, normally below the level of ence of the subscribing Witnesses. the fluid in the reservoir, whereby an air REUBEN (J. BRUPHY. 5 spece inside,the reservoir is insured, and e Witnesses:

funnel forthe purpose of refiHi'ngis provided, CHAS. H. SEEM, substantially as and for the purpose set forth. S. E. DARBY. 

